Mattress Upholstery:
The Comfort Factor
The term "upholstery" refers to the various
soft layers of the mattress that surround the innerspring
unit, giving the bed its
comfort. Innerspring
mattress upholstery contains four essential layers:
insulation, cushioning, quilting and
ticking.
Insulation
Insulation is the layer that lies between
the
coil springs and the cushioning and
is frequently constructed from fiber or mesh. The main purpose of the insulation
layer is to prevent the outer layers of padding from pocketing into the
coils.
Cushioning
Cushioning, also known as "middle padding," lies
on top of the insulation and below the quilting layer
which tops the mattress. The cushioning layer is key in determining
how the mattress will feel against your body. Cushioning can be
made from a dizzying variety of materials — the list includes
latex,
visco-elastic foam (better known as "memory foam"),
convoluted foam
(also known as "egg-crate foam"), felt, cotton, polyester,
non-woven fiber pads, wool, goose down, or even silk and cashmere. Two
mattresses with the same innerspring unit can vary widely in
comfort, longevity,
and price based on how luxurious and durable the cushioning materials are.
For example, memory foam will limit how much you
feel your partner's movements,
and egg-crate foam will create a softer feeling than a flat slab of otherwise
similar foam. Likewise, a set with cashmere or silk cushioning
will cost a good deal more than one with polyester cushioning. The
method by which the padding is stitched into place, known as
"tufting," can
also affect the durability and price of the mattress. Some of the higher-end
models feature hand-stitching, which helps the padding better retain its
shape and comfort.
Quilting
Quilting is the top-most layer inside the
mattress. It can provide additional padding, giving the mattress surface
a feeling of softness when poked, while also providing a way for the mattress
to breathe. Typically, quilting is made of foam and/or
fibers stitched
to the underside of the ticking.
Quilting can vary from quite plush and soft to firm and resilient. Softer
quilting will generally have a larger stitch pattern, whereas firmer quilting
will be characterized by a tighter, more compressed pattern. A relatively
recent innovation in quilting is the "pillow-top," a thick,
soft, cushy layer of foam, cotton, wool and/or other fibers that is attached
loosely to the top of the mattress. Nipping at the heels of the pillow-top
is the newer "Euro-top," which is similar to a pillow-top but
is attached more firmly to the mattress. Depending on your preference,
special toppers such as these can make a bed significantly more comfortable.
That said, be aware that pillow-tops and Euro-tops can compress over time,
and as they are an integral part of the mattress, they cannot be replaced.
Ticking
Ticking, a fancy word for the
cover of the mattress,
is the protective outer layer of fabric that encases the mattress. Most
ticking is made from synthetic fibers such as polyester or a cotton-poly
blend, although a number of high-end mattresses now offer ticking in such
luxurious fibers as silk or linen. Ticking fabric is typically either woven
on a loom (as with damask) or
knit. Although you might be drawn in
by a snazzy design on the ticking, stitch patterns relate as much to function
as they do to aesthetics. As mentioned above, a large stitch pattern
will result in a deeper, softer cushion whereas a tighter stitch will provide
a firmer, more supportive sensation.